Module #6 Review Question Preview (ID: 34149)


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What two theories attempt to explain the earth’s magnetic field?
a) Dynamo Theory and Catastrophe theory
b) Rapid Decay Theory and Rotation Theory
c) Dynamo Theory and Rapid Decay Theory
d)

Which theory is the most scientifically valid?
a) Rapid Decay Theory
b) Dynamo Theory
c)
d)

Scientists measured Earthquake activity for a region that sits near the middle of one of the plates in the earth’s crust, and in another region that is very near a boundary of two plates. Which region will have the greatest earthquake activity?
a) In the middle of the plate
b) Near the boundry of the plates
c)
d)

The asthenosphere is composed of __________________
a) Solid material
b) Molten liquid rock
c) Plastic Rock
d) Magma

The earth’s magnetic field is generated in the earth’s _____________
a) mantle
b) core
c) crust
d) lava

__________ is a hypothetical supercontinent that might have existed in earth’s past.
a) PANCAKE
b) PANGEA
c) Antarctica
d) North America

People can ___________observe the atmosphere, hydrosphere, and crust.
a) directly (see and touch)
b) indirectly
c)
d)

_________________ rock is formed by molten rock solidifying.
a) Metamorphic Rock
b) Sedimentary Rock
c) Igneous Rock
d)

Earthquakes can be caused by motion of rock masses along a _______________
a) fault
b) epicenter
c) focus
d) path

The _____________discontinuity separates the mantle from the core.
a) Mohorovicic
b) Gutenberg
c) Lehmann
d)

The _____________discontinuity separates the crust from the mantle
a) Mohorovicic
b) Gutenberg
c) Lehmann
d)

The earth’s ____________ core is solid.
a) inner
b) Outer
c)
d)

The boundary between a section of moving rock and section of stationary rock.
a) Earthquake
b) Fault
c) Focus
d) Epicenter

The point along a fault where an earthquake begins.
a) focus
b) epicenter
c) fault
d) crust

Rock formed when heat, pressure, and chemical reactions cement materials together.
a) sedimentary rock
b) metamorphic rock
c) igneous rock
d)

A deposit of sand and mineral fragments, usually laid down by water.
a) earthquake
b) sediment
c) metamorphic rock
d) plastic rock

If an earthquake measures 5 on the Richter scale and is followed by an aftershock that measures 3, how many times more energy was released in the original earthquake as compared to the aftershock?
a) 32x32
b) 32
c) 32x32x32
d) 32x32x32x32

A trembling or shaking of the earth as a result of rock masses suddenly moving along a fault.
a) fault
b) earthquake
c) focus
d) epicenter

Rock that behaves like something between a liquid and a solid.
a) Plastic Rock
b) metamorphic rock
c) sedimentary rock
d) igneous rock

The point on the surface of the earth directly above an earthquake’s focus.
a) impact point
b) fault
c) epicenter
d) focus

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